Some twin approximation operators on covering approximation spaces.
Liwen MaPublished in: Int. J. Approx. Reason. (2015)
Keyphrases
- approximation spaces
- approximation operators
- rough sets
- upper approximation
- rough set theory
- rough set approximations
- set theoretic
- attribute reduction
- granular computing
- information entropy
- fuzzy rough sets
- fuzzy sets
- soft computing
- equivalence relation
- rough fuzzy
- fuzzy logic
- neural network
- genetic programming
- probabilistic model
- machine learning